I concur. PLA 'Marines' pattern circa 1985. I have a set which I bought about that time but I'm sure the cut was different. Haven't seen my set for years - buried in the vault. Quite a rare specimen as far as Chicom camo goes.
Sorry to be obvious but it's only going to worth as much as someone is willing to pay for it. As far as world camo goes it's not a particularly desirable piece, however, to a dedicated Chicom collector it would be more valuable. I would suggest try 'Red Alliance' forum.